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Weakness in a RSA-based password authenticated key exchange protocol |
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| Authors: | Taek-Young Youn |
| Affiliation: | a Graduate School of Information Management and Security, Korea University, Seoul, Republic of Korea b Department of Information Security Systems, Sejong Cyber University, Seoul, Republic of Korea c School of Computer Engineering, Semyeong University, Jechon, Republic of Korea |
| Abstract: | Recently, an efficient password-authenticated key exchange protocol based on RSA has been proposed by Park et al. with formal security proof. In this letter, we analyze their protocol, and show that, unfortunately, it is insecure against an adversary who performs a dictionary attack. |
| Keywords: | Dictionary attack Key exchange Password RSA Cryptography |
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